Installation Instructions Owner manual

MicroLogix 1400 Programmable Controllers 17
Publication 1766-IN001C-EN-P - October 2009
Using the Battery
The MicroLogix 1400 controller is equipped with a replaceable battery (catalog number
1747-BA). The Battery Low indicator on the LCD display of the controller shows the status
of the replaceable battery. When the battery is low, the indicator is set (displayed as a solid
rectangle). This means that either the battery wire connector is disconnected, or the battery
may fail within 2 days if it is connected.
Follow these steps to connect the replaceable battery.
1. Insert the replaceable battery wire connector into the controller’s battery connector.
IMPORTANT
The MicroLogix 1400 controller ships with the battery wire connector connected.
Ensure that the battery wire connector is inserted into the connector port if your
application needs battery power. For example, when using a real-time clock
(RTC).
Replacing the battery when the controller is powered down will lose all user
application memory. Replace the battery when the controller is powered on.
Refer to the SLC 500 Lithium Battery Installation Instructions, publication
1747-IN515
, for more information on installation, handling, usage, storage, and
disposal of the battery.
WARNING
When you connect or disconnect the battery an electrical arc can occur. This
could cause an explosion in hazardous location installations. Be sure that the
area is nonhazardous before proceeding.
For Safety information on the handling of lithium batteries, including handling
and disposal of leaking batteries, see Guidelines for Handling Lithium Batteries,
publication AG 5-4
.